"I saw a horse, two ponies and I believe three alpacas," Allenstown Fire Chief Dana Pendergast said. "They were all out of the barn on arrival."

Firefighters stopped the fire from spreading to the house, which was about 100 feet away. The house sustained some melted siding. Pendergast estimated damage to the 40-foot-by-60-foot barn at around $25,000.

Authorities had no cause yet for the fire, and no one was injured.

About 20 firefighters worked the fire from Allenstown, Deerfield, Pembroke, Epsom and Hooksett.